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The Effects of A-site Doping on Crystal Structure, Microstructure and Electrical Properties of (Ba0.85Ca0.15) Zr0.1Ti0.9O3 Ceramics
Paper Type  |
Contributed Paper |
Title |
The Effects of A-site Doping on Crystal Structure, Microstructure and Electrical Properties of (Ba0.85Ca0.15) Zr0.1Ti0.9O3 Ceramics |
Author |
Panupong Jaiban, Thanakrit Theethuan, Saryrung Khumtrong, Sirintra Lokakaew, Patharacha Kongchana and Anucha Watcharapasorn |
Email |
panupongj@kmutnb.ac.th |
|
Abstract: (Ba0.85Ca0.15) Zr0.1Ti0.9O3 (BCZT) ceramics with donor (La3+ and Bi3+ ions) and acceptor (Na+ ions) doping at the A-site were fabricated in this study. The effects of crystal structure, microstructure, and chemical defects on all samples’ dielectric properties and piezoelectric coefficient (d33) were observed. Bi3+ ions decreased grain size, decreased phase transition temperature, and caused the diffuse dielectric spectrum, resulting in a low d33 value. Na+ ions induced abnormal grain growth, leading to enhancement in maximum dielectric constant; meanwhile, the phase transition temperature increased. The d33 value of Na-doped BCZT was comparable with BCZT ceramic. The addition of La3+ ions increased the phase transition temperature and decreased grain size. The d33 value of La-doped BCZT was lower than BCZT ceramic. The result suggested that BCZT, BCZT-Na, and BCZT-La ceramics could be alternative materials for piezoelectric energy harvesting devices. |
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Start & End Page |
1150 - 1163 |
Received Date |
2022-03-17 |
Revised Date |
2022-05-14 |
Accepted Date |
2022-06-08 |
Full Text |
Download |
Keyword |
donor doping, chemical defects, BCZT doping, refinement |
Volume |
Vol.49 No.4 (July 2022) |
DOI |
https://doi.org/10.12982/CMJS.2022.074 |
Citation |
Jaiban P., Theethuan T., Khumtrong S., Lokakaew S., Kongchana P. and Watcharapasorn A., The Effects of A-site Doping on Crystal Structure, Microstructure and Electrical Properties of (Ba0.85Ca0.15) Zr0.1Ti0.9O3 Ceramics, Chiang Mai Journal of Science, 2022; 49(4): 1150-1163. DOI 10.12982/CMJS.2022.074. |
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